Sounds like good idea to me.
The axle is about 8" to wide for the 1.5 and 2 ton trucks. They can be narrowed, but it is a little bit of work.
Check my pictures on the
link below.
I'll soon have pictures up of narrowing another axle, but with a different approach to the spring pads.
Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-